Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7026749 | Cathode for electron tube and method of preparing the same | Hwan-Chul Rho, Hae-Taek Yang | 2006-04-11 |
| 5015911 | Multistep focusing electron gun for cathode ray tube | — | 1991-05-14 |
| 4866335 | CRT electron gun with multi-lens system | — | 1989-09-12 |
| 4827181 | Focusing electrodes of an electron gun for use in a color television cathode ray tube | — | 1989-05-02 |